Rational or Irrational

All of the following are characteristics of a rational number EXCEPT...

• the decimal repeats
• It forms a fraction or ratio
• the decimal ends

• the decimal goes on and on and never ends

What is the most common irrational number?

• 2.3
• pi
• 4/6
• 5.5.......

What does the square root of 2 estimate to be?

• 1.2
• 2.0
• 1.4
• 4.9

What does the square root of 3 estimate to be?

• 1.2
• 5
• 9
• 1.7

Is the square root of 8 rational or irrational?

• rational
• irrational

Is the square root of 16 rational or irrational?

• rational
• irrational

Classify this number....  The square root of -16

• rational
• irrational
• imaginary
• hopeless